Question

Git init on NGINX folder

If if git init on the nginx folder i get a permission denied cause the folder is own by root.
Question: is there a way to initiate a git project to that folder without have to use sudo or without having to change the folder from being owned by root?

You will have hard time with this, this is not so possible without sudo. Basically git init creates empty git structure in current folder. It is one folder called .git which have everything about it - commits info, branches info, etc.
If your user can’t create folder in nginx folder, you can’t use git init.

You have login as root, or use sudo git init, it should be working

Even if you do git init somewhere where you have write access (like home folder), you can’t move .git to nginx folder as you don’t have write permissions on it